Principal English Translation: 

the mountain trogon, a type of bird with green feathers (late sixteenth century, Tetzcoco?)
Ballads of the Lords of New Spain: The Codex Romances de los Señores de la Nueva España, transcribed and translated by John Bierhorst (Austin: University of Texas Press, 2009), 35.

Attestations from sources in English: 

tzinitzcan (noun) = a bird, Trogon Mexicannus
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 167.